The Italy striker has not scored in his nine games his loan move from Juventus this season.

And his future in East London is in doubt with five more appearances triggering a permanent £20m deal.

His agent father Antonio said last week that he was ready to listen to offers, especially from Napoli .

But Zaza, who has still been called up to the Italy squad, told Italian TV: “Napoli are a great team and I have already been fortunate enough to play for Juventus, so I am proud of that, but I am focused on breaking my duck and playing well, West Ham are my current club and it would be a personal failure if I was to leave now.”

Simone Zaza has struggled to impress at West Ham (Photo: Getty Images)

The West Ham forward came on as a late sub in the 4-0 win over Liechtenstein and admitted: “I did not expect to be called up, there’s no point being hypocritical about it. I needed this boost and I am happy,” Zaza said after the 4-0 win, where he was a late substitute.

“It means the coach believes in me, but yes, it was unexpected. I am coming off a period that has not been positive, but I’m trying to give my best to prove what I am worth. I hope this spell passes as soon as possible.”